I posted the other day that a singer 12 bobbin will fit a Frister and Rossmann. I forgot to add one very important item. You need to drill a small hole in one end of the bobbin to accept the pin in the bobbin winder clamp in order for the bobbin to turn properly. This is very easy to do with a small dremel bit. Yes and they do work just fine in the Fand R. Sorry Steve I forgot to tell you this in the PM. Just another senior moment.
I just have to much in my head to keep it all straight.
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I have sewing machine overload.....